Ryan Callahan ha enfrentado a 14 oponentes a lo largo de su carrera.
| Player | Team(s) | Games |
|---|---|---|
| Marcus Barnett |
William & Mary Tribe
(NCAA)
|
1 |
| Kyle Carrabine |
William & Mary Tribe
(NCAA)
|
1 |
| Corey Cofield |
William & Mary Tribe
(NCAA)
|
1 |
| Chris Darnell |
William & Mary Tribe
(NCAA)
|
1 |
| Steven Hess |
William & Mary Tribe
(NCAA)
|
1 |
| Laimonas Kisielius |
William & Mary Tribe
(NCAA)
|
1 |
| Nathan Mann |
William & Mary Tribe
(NCAA)
|
1 |
| Adam Payton |
William & Mary Tribe
(NCAA)
|
1 |
| David Schneider |
William & Mary Tribe
(NCAA)
|
1 |
| Alex Smith |
William & Mary Tribe
(NCAA)
|
1 |
| Peter Stein |
William & Mary Tribe
(NCAA)
|
1 |
| Chris Stratton |
William & Mary Tribe
(NCAA)
|
1 |
| Danny Sumner |
William & Mary Tribe
(NCAA)
|
1 |
| Adam Trumbower |
William & Mary Tribe
(NCAA)
|
1 |